Apple CEO Steve Jobs delivers the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. Apple CEO Steve Jobs returned from sick leave to introduce Apple's new iCloud storage system and the next versions of Apple's iOS and Mac OSX. (Photo by Justin Sullivan/Getty Images)

Groupama Sailing Team, skippered by Franck Cammas of France during leg 1 of the Volvo Ocean Race to Cape Town on November 6, 2011. (Photo by Yann Riou/Groupama Sailing Team/Volvo Ocean Race via Getty Images)

In this photo provided by the U.S. Coast Guard, the Russian tanker Renda powers toward Nome, Alaska with the U.S. Coast Guard Cutter Healy's assistance January 6, 2012 in the Bering Sea. (Photo by Sara Francis/U.S. Coast Guard via Getty Images)

Groundhog handler Ron Ploucha holds Punxsutawney Phil after he saw his shadow predicting 6 more weeks of winter during the 126th annual Groundhog Day festivities on February 2, 2012 in Punxsutawney, Pennsylvania. (Photo by Jeff Swensen/Getty Images)

Israelis participate in a “Zombie Walk” during the Jewish holiday of Purim on March 6, 2012 in Tel Aviv, Israel. The carnival-like Purim holiday is celebrated with parades and costume parties to commemorate the deliverance of the Jewish people from a plot to exterminate them in the ancient Persian empire 2,500 years ago, as described in the Book of Esther. (Photo by Uriel Sinai/Getty Images)

Studio shot of the new Red Bull Racing RB8 Formula One car is released on February 6, 2012 in Milton Keynes, England. (Photo by Red Bull Racing/Getty Images)

An Egyptian Coptic Christian women holds onto a pew during the celebration of Christmas Nativity Liturgy, the start of Christmas, at the Coptic Orthodox Church of St. George on January 6, 2012 in the Brooklyn borough of New York City. (Photo by Spencer Platt/Getty Images)

In this photo illustration a sat nav is seen attached to a windscreen of a car in front of a sign telling some motorists to ignore their satellite navigation devices on January 6, 2012 in Symonds Yat, England. (Photo illustration by Matt Cardy/Getty Images)